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by 6by9
Fri Oct 19, 2018 9:01 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: TV Head CSI on Pin Header?
Replies: 2
Views: 39

Re: TV Head CSI on Pin Header?

The TV hat is passing dvb compressed broadcast streams, so up to about 10Mbit/max.
The camera connector is dealing with uncompressed video, so typically >300Mbit/s.
by 6by9
Fri Oct 19, 2018 8:42 am
Forum: Camera board
Topic: Realtime Geometric Camera/Lens Distortion Correction
Replies: 3
Views: 57

Re: Realtime Geometric Camera/Lens Distortion Correction

viewtopic.php?f=68&t=222930 is using IL but has recommendations for MMAL. I thought it had been implemented but can't see it.
viewtopic.php?f=70&t=223050 was adding an overlay although references using GL.
by 6by9
Fri Oct 19, 2018 8:32 am
Forum: Camera board
Topic: Realtime Geometric Camera/Lens Distortion Correction
Replies: 3
Views: 57

Re: Realtime Geometric Camera/Lens Distortion Correction

Yes there is geometric distortion correction in the isp. IIRC it's not enabled by default but the tuner (control sw) for it will be loaded hence the memory allocation. It's not a high priority to enable setting custom distortion grids, but I can look into it. There is a thread on feeding gl textures...
by 6by9
Thu Oct 18, 2018 10:14 am
Forum: Camera board
Topic: Image Size Too Big
Replies: 21
Views: 7170

Re: Image Size Too Big

Deadgost wrote:
Thu Oct 18, 2018 7:18 am
Ya , can you give a same solution for video
??
For video (via raspivid) you specify the bitrate desired and the codec should adjust whatever parameters it has to try and achieve the best quality at that bitrate. -b option.
by 6by9
Wed Oct 17, 2018 11:17 am
Forum: General discussion
Topic: 8 channel CCTV with Pi 3 B
Replies: 8
Views: 189

Re: 8 channel CCTV with Pi 3 B

Okay at the moment we have 4 composite cameras but maybe IP based is the way to go. I can do that then is it a case of installing motion eye? If you're looking to keep the 4 composite cameras, then Axis do a range of video encoders to convert them into IP cameras. I last used their kit back in abou...
by 6by9
Wed Oct 17, 2018 9:38 am
Forum: General discussion
Topic: TC358743 B102 on CM3
Replies: 9
Views: 133

Re: TC358743 B102 on CM3

It's generally best to start a new thread when changing the subject so completely! As fruit says, Jessie is end of life and Stretch should be used instead. If you had the B102 being identified / running on the CM3 then you were 95% of the way there. Update the /boot/dt-blob.bin with the version from...
by 6by9
Wed Oct 17, 2018 9:26 am
Forum: General discussion
Topic: 8 channel CCTV with Pi 3 B
Replies: 8
Views: 189

Re: 8 channel CCTV with Pi 3 B

As scotty101 says, it depends on the type of camera. The Pi has no composite video in. There is a supported chip (ADV7280-MA) that does composite (and S-video, and component) to CSI2 to be sent to the Pi camera connector, but I'm not aware of anyone selling a board based on it. I have a lash up of t...
by 6by9
Tue Oct 16, 2018 1:17 pm
Forum: Advanced users
Topic: JPEG encoder output tearing
Replies: 6
Views: 301

Re: JPEG encoder output tearing

Do the mmal components provide an output buffer when requested ONLY when the conversion in memory is COMPLETE? Yes, as with almost all pipeline frameworks (OpenMax, GStreamer, V4L2, etc), buffer ownership is the key to who is allowed to interact with the buffer. The alternative mechanism some thing...
by 6by9
Tue Oct 16, 2018 1:09 pm
Forum: General discussion
Topic: TC358743 B102 on CM3
Replies: 9
Views: 133

Re: TC358743 B102 on CM3

Can you please tell me if and how I can fixt this Problem? What exactly is your problem with it? It's an informational message laying out the support level on the use of that application with devices based on the TC358743 chips. Raspberry Pi have never released an HDMI input board, therefore they h...
by 6by9
Tue Oct 16, 2018 7:56 am
Forum: Graphics, sound and multimedia
Topic: HDMI to CSI-2 via TC358743 on kernel 4.1
Replies: 426
Views: 105838

Re: HDMI to CSI-2 via TC358743 on kernel 4.1

andes wrote:
Tue Oct 16, 2018 2:04 am

Code: Select all

audio_present (bool)   : default=0 value=0 flags=read-only
There's no audio being received by the TC358743 over the HDMI link.
And because of that

Code: Select all

audio_sampling_rate (int)    : min=0 max=768000 step=1 default=0 value=0 flags=read-only
the sampling rate can't be identified.
by 6by9
Mon Oct 15, 2018 8:13 pm
Forum: Camera board
Topic: MMAL RGB to JPEG encoder width issues
Replies: 4
Views: 182

Re: MMAL RGB to JPEG encoder width issues

It looks like image_encode got patched back in 2012 to support unaligned strides, but in the process resulted in the stride having to be the internal aligned value, which is aligned to a multiple of 16 in the case of RGB888 (32 for YUV formats). So I should align the stride to a multiple of 16 pixe...
by 6by9
Mon Oct 15, 2018 1:15 pm
Forum: Camera board
Topic: MMAL RGB to JPEG encoder width issues
Replies: 4
Views: 182

Re: MMAL RGB to JPEG encoder width issues

Sorry, your code is near useless without a Makefile or some form of test harness. Fortunately a one line change to raspistill changing the encoding on the camera stills port can exercise the same path. It looks like image_encode got patched back in 2012 to support unaligned strides, but in the proce...
by 6by9
Mon Oct 15, 2018 10:04 am
Forum: Compute Module
Topic: [SOLVED} what is the Compute Module's pin_config section?
Replies: 8
Views: 286

Re: what is the Compute Module's pin_config section?

I'll point you straight back to my earlier post Read the docs for picamera https://picamera.readthedocs.io/en/release-1.13/api_camera.html#picamera The led_pin parameter can be used to specify the GPIO pin which should be used to control the camera’s LED via the led attribute. If this is not specifi...
by 6by9
Mon Oct 15, 2018 8:45 am
Forum: Compute Module
Topic: [SOLVED} what is the Compute Module's pin_config section?
Replies: 8
Views: 286

Re: what is the Compute Module's pin_config section?

raspistill -cs 0 -o image0.jpg raspistill -cs 1 -o image1.jpg Note that -cs X matches the CAMERA_X_ defines in pins_config section. With the default setup of [email protected]_0_UNICAM_PORT { type = "internal"; number = <1>; }; .. [email protected]_1_UNICAM_PORT { type = "internal"; number = <0>; }...
by 6by9
Sun Oct 14, 2018 2:47 pm
Forum: Advanced users
Topic: Moving Linux kernel to 4.14
Replies: 150
Views: 52857

Re: Moving Linux kernel to 4.14

Hmm, another checksum issue. There are a couple of github issues that may be relevant. I found one - that's new enough and relevant. I can't work out what https://github.com/Hexxeh commit I need to go back to to avoid the error. You commented on the issue which included tried every single version f...
by 6by9
Sun Oct 14, 2018 7:56 am
Forum: Camera board
Topic: Annotate, any hope for future changes?
Replies: 115
Views: 12273

Re: Annotate, any hope for future changes?

That's great! Is it possible to use this yet? I see the code changes on GitHub, but I did rpi-update today and I don't think they've included it in the release yet. I checked on my system after the update /opt/vc/include/interface/mmal/mmal_parameters_camera.h and it does not show those settings. S...
by 6by9
Sat Oct 13, 2018 9:19 pm
Forum: Camera board
Topic: MMAL RGB to JPEG encoder width issues
Replies: 4
Views: 182

Re: MMAL RGB to JPEG encoder width issues

Not something I can test right now, but I will look when I'm in the office again.
by 6by9
Sat Oct 13, 2018 4:53 pm
Forum: Graphics, sound and multimedia
Topic: Hw acceleration on ffmpeg
Replies: 7
Views: 205

Re: Hw acceleration on ffmpeg

You're still software decoding mjpeg on the cpu. I can't recall if the mmal_dec codec can do mjpeg or not, which should be hardware accelerated for decode. What resolution are you getting from your ip camera? 640 x 480 VGA should be no hassle software decoding on anything other that a Pi Zero or 1....
by 6by9
Sat Oct 13, 2018 4:16 pm
Forum: Graphics, sound and multimedia
Topic: Hw acceleration on ffmpeg
Replies: 7
Views: 205

Re: Hw acceleration on ffmpeg

You're still software decoding mjpeg on the cpu. I can't recall if the mmal_dec codec can do mjpeg or not, which should be hardware accelerated for decode.
What resolution are you getting from your ip camera?
by 6by9
Sat Oct 13, 2018 2:25 pm
Forum: Graphics, sound and multimedia
Topic: Hw acceleration on ffmpeg
Replies: 7
Views: 205

Re: Hw acceleration on ffmpeg

Libx264 is a software codec so will never be hardware accelerated.
h264_omx is the hardware accelerated codec in ffmpeg, so I'm assuming they've enabled the relevant build options for that.
by 6by9
Sat Oct 13, 2018 8:37 am
Forum: General discussion
Topic: Sony CMOS Sensor: SonyIMX179
Replies: 12
Views: 9923

Re: Sony CMOS Sensor: SonyIMX179

I am following up on this old post to see if IMX179 drivers are yet available for pi 3 B+. Interest is in using high resolution in 3D scanning. There is a large community who would benefit from the use of this camera if drivers were or are made available. Thank you. A lot has happened in 4 years. A...
by 6by9
Sat Oct 13, 2018 8:17 am
Forum: Camera board
Topic: Better Camera Replacement?
Replies: 39
Views: 8673

Re: Better Camera Replacement?

I'm totally lost on that post. I think the only thing I'll say is that USB is pretty limited and has a very heavy overhead so is not the best interface for video. USB2 is limited at a practical 300Mbit/s (theoretical 480Mbit/s), whilst CSI2 can transfer 1Gbit/s per lane, and the Pi exposes 2 lanes. ...
by 6by9
Fri Oct 12, 2018 3:50 pm
Forum: General discussion
Topic: Raspivid filename (%04d.h264) not working
Replies: 1
Views: 43

Re: Raspivid filename (%04d.h264) not working

Almost the same question as in https://www.raspberrypi.org/forums/viewtopic.php?f=43&t=224569 ? Fix for that just going through at the moment https://github.com/raspberrypi/userland/pull/491 / https://github.com/raspberrypi/userland/pull/492 However there appear to be a couple of things wrong/odd in...
by 6by9
Fri Oct 12, 2018 2:58 pm
Forum: Compute Module
Topic: Compute Module IO board and official 7in LCD?
Replies: 42
Views: 8090

Re: Compute Module IO board and official 7in LCD?

At least RS are selling the camera and display boards (Farnell had been not stocking them separately), but I certainly had always been making the assumption they had shipped with the CMIO. I'll query with sales mine came without any adapters; CMIO only in a white box with yellow label That sounds l...
by 6by9
Fri Oct 12, 2018 2:12 pm
Forum: Compute Module
Topic: Compute Module IO board and official 7in LCD?
Replies: 42
Views: 8090

Re: Compute Module IO board and official 7in LCD?

Parts arrived: Now it works (two cams and one display). Poblem solved. Good news. because in the pi-shop.ch version of the development kit is the display adaptor not (yet) included, and probably in other kits from other sellers too. It looks like RS have dropped them from their bundle which I wasn'...

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